[Bug tree-optimization/79245] [7 Regression] Inefficient loop distribution to memcpy

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79245

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Jan 27 13:56:59 2017
New Revision: 244976

URL: https://gcc.gnu.org/viewcvs?rev=244976&root=gcc&view=rev
Log:
2017-01-27  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/79245
        * tree-loop-distribution.c (distribute_loop): Apply cost
        modeling also to detected patterns.

        * gcc.dg/tree-ssa/ldist-23.c: XFAIL.
        * gcc.dg/tree-ssa/ldist-25.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-25.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-23.c
    trunk/gcc/tree-loop-distribution.c